diff --git a/README.md b/README.md
index 5643aad..e6b9704 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,10 @@ Install PNPM package manager.
 
 **Optional** Registry to download PNPM from.
 
+### `run_install`
+
+**Optional** If specified, run `pnpm install`.
+
 ## Outputs
 
 ### `dest`
diff --git a/action.yml b/action.yml
index 4da87a9..9de6293 100644
--- a/action.yml
+++ b/action.yml
@@ -19,6 +19,10 @@ inputs:
     description: Registry to download PNPM from
     required: false
     default: https://registry.npmjs.com
+  run_install:
+    description: If specified, run `pnpm install`
+    required: false
+    default: 'null'
 runs:
   using: node12
   main: dist/index.js
diff --git a/dist/index.js b/dist/index.js
index c1a9000..96a6802 100644
Binary files a/dist/index.js and b/dist/index.js differ
diff --git a/package.json b/package.json
index a433b49..020857e 100644
--- a/package.json
+++ b/package.json
@@ -8,9 +8,11 @@
   "dependencies": {
     "node-fetch": "^2.6.0",
     "expand-tilde": "^2.0.2",
+    "js-yaml": "^3.13.1",
     "@actions/core": "^1.2.4",
     "@types/expand-tilde": "^2.0.0",
     "@types/node-fetch": "^2.5.7",
+    "@types/js-yaml": "^3.12.3",
     "@types/node": "^13.13.5"
   },
   "devDependencies": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 94d47d9..fb3c880 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1,9 +1,11 @@
 dependencies:
   '@actions/core': 1.2.4
   '@types/expand-tilde': 2.0.0
+  '@types/js-yaml': 3.12.3
   '@types/node': 13.13.5
   '@types/node-fetch': 2.5.7
   expand-tilde: 2.0.2
+  js-yaml: 3.13.1
   node-fetch: 2.6.0
 devDependencies:
   '@zeit/ncc': 0.22.1
@@ -18,6 +20,10 @@ packages:
     dev: false
     resolution:
       integrity: sha512-17h/6MRHoetV2QVUVnUfrmaFCXNIFJ3uDJmXlklX2xDtlEb1W0OXLgP+qwND2Ibg/PtQfQi0vx19KGuPayjLiw==
+  /@types/js-yaml/3.12.3:
+    dev: false
+    resolution:
+      integrity: sha512-otRe77JNNWzoVGLKw8TCspKswRoQToys4tuL6XYVBFxjgeM0RUrx7m3jkaTdxILxeGry3zM8mGYkGXMeQ02guA==
   /@types/node-fetch/2.5.7:
     dependencies:
       '@types/node': 13.13.5
@@ -34,6 +40,12 @@ packages:
     hasBin: true
     resolution:
       integrity: sha512-Qq3bMuonkcnV/96jhy9SQYdh39NXHxNMJ1O31ZFzWG9n52fR2DLtgrNzhj/ahlEjnBziMLGVWDbaS9sf03/fEw==
+  /argparse/1.0.10:
+    dependencies:
+      sprintf-js: 1.0.3
+    dev: false
+    resolution:
+      integrity: sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==
   /asynckit/0.4.0:
     dev: false
     resolution:
@@ -52,6 +64,13 @@ packages:
       node: '>=0.4.0'
     resolution:
       integrity: sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
+  /esprima/4.0.1:
+    dev: false
+    engines:
+      node: '>=4'
+    hasBin: true
+    resolution:
+      integrity: sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
   /expand-tilde/2.0.2:
     dependencies:
       homedir-polyfill: 1.0.3
@@ -78,6 +97,14 @@ packages:
       node: '>=0.10.0'
     resolution:
       integrity: sha512-eSmmWE5bZTK2Nou4g0AI3zZ9rswp7GRKoKXS1BLUkvPviOqs4YTN1djQIqrXy9k5gEtdLPy86JjRwsNM9tnDcA==
+  /js-yaml/3.13.1:
+    dependencies:
+      argparse: 1.0.10
+      esprima: 4.0.1
+    dev: false
+    hasBin: true
+    resolution:
+      integrity: sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==
   /mime-db/1.44.0:
     dev: false
     engines:
@@ -104,6 +131,10 @@ packages:
       node: '>=0.10.0'
     resolution:
       integrity: sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=
+  /sprintf-js/1.0.3:
+    dev: false
+    resolution:
+      integrity: sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
   /typescript/3.8.3:
     dev: true
     engines:
@@ -114,9 +145,11 @@ packages:
 specifiers:
   '@actions/core': ^1.2.4
   '@types/expand-tilde': ^2.0.0
+  '@types/js-yaml': ^3.12.3
   '@types/node': ^13.13.5
   '@types/node-fetch': ^2.5.7
   '@zeit/ncc': ^0.22.1
   expand-tilde: ^2.0.2
+  js-yaml: ^3.13.1
   node-fetch: ^2.6.0
   typescript: ^3.8.3
diff --git a/src/inputs/index.ts b/src/inputs/index.ts
index 9fa12ab..c99b619 100644
--- a/src/inputs/index.ts
+++ b/src/inputs/index.ts
@@ -1,11 +1,25 @@
 import { getInput, InputOptions } from '@actions/core'
 import expandTilde from 'expand-tilde'
+import { safeLoad } from 'js-yaml'
+
+interface RunInstall {
+  readonly recursive?: boolean
+  readonly cwd?: string
+  readonly args?: readonly string[]
+}
+
+type RunInstallInput =
+  | null
+  | boolean
+  | RunInstall
+  | RunInstall[]
 
 export interface Inputs {
   readonly version: string
   readonly dest: string
   readonly binDest: string
   readonly registry: string
+  readonly runInstall: RunInstall[]
 }
 
 const options: InputOptions = {
@@ -14,11 +28,20 @@ const options: InputOptions = {
 
 const parseInputPath = (name: string) => expandTilde(getInput(name, options))
 
+function parseRunInstall(name: string): RunInstall[] {
+  const result: RunInstallInput = safeLoad(getInput(name, options))
+  if (!result) return []
+  if (result === true) return [{ recursive: true }]
+  if (Array.isArray(result)) return result
+  return [result]
+}
+
 export const getInputs = (): Inputs => ({
   version: getInput('version', options),
   dest: parseInputPath('dest'),
   binDest: parseInputPath('bin_dest'),
   registry: getInput('registry', options),
+  runInstall: parseRunInstall('run_install'),
 })
 
 export default getInputs